Hair brush



FIG. 1 is a front isometric view of the claimed design.

FIG. 2 is a front elevation view of the claimed design.

FIG. 3 is a rear elevation view of the claimed design.

FIG. 4 is a side elevation view of the claimed design.

FIG. 5 is a top plan view of the claimed design; and,

FIG. 6 is a bottom plan view of the claimed design. 

CLAIM I claim the ornamental design for a hair brush, as shown and described. 